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Testing the DIY CNC I Built from SCRATCH

6 September 2026 · 14 min · 18K views

What this video covers

A custom-built CNC machine, designed for boat construction, undergoes precision testing on wood and aluminum.Watch Initial trials on wood demonstrate high accuracy, achieving tight, friction-fit joints without manual spacing.0:31 The machine successfully cuts through plywood and solid wood without damaging the sacrificial table.2:29 Following these results, the builders transition to testing 5mm and 8mm marine-grade aluminum plates.5:15 The first aluminum attempt fails when the machine experiences a mechanical stall and vibration during the final pass, which the operator attributes to an incorrect acceleration setting.11:11 After adjusting the feed rate for the final layer and tightening all structural fasteners, a second attempt successfully completes the cut through the aluminum plate.12:22 The emergency stop system functions correctly during the initial failure.11:11 The project documentation, including assembly guides and calibration files, is available for those looking to replicate the build.0:17

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